PROBLEM TO BE SOLVED: To provide a temperature-sensitive light-shielding sheet of which transparency reversibly changes along with a change in a temperature that has excellent transparency in the vicinity of room temperature, lowers a total light transmittance along with the increase in the temperature, can exhibit sufficient light-shielding properties, and is excellent in mechanical physical properties and productivity.SOLUTION: There is provided a temperature-sensitive light-shielding sheet formed from a resin composition which contains an olefin-based resin (A) of 95-30 mass%, and an inorganic filler (B) of 5-70 mass%, where the inorganic filler (B) is preferably a glass filler containing any one of a silicic acid, a boric acid, alumina, a zinc oxide and calcium oxide as a main component.SELECTED DRAWING: None【課題】温度変化に伴って可逆的に透明性が変化する感温性遮光シートであって、室温付近で優れた透明性を有すると共に、温度上昇と共に全光線透過率が低下し、十分な遮光性を発現することができ、機械物性や生産性にも優れる感温性遮光シートを提供する。【解決手段】オレフィン系樹脂（Ａ）９５～３０質量％、及び、無機系充填材（Ｂ）５～７０質量％を含む樹脂組成物からなる感温性遮光シート。無機系充填材（Ｂ）としては、珪酸、ホウ酸、アルミナ、酸化亜鉛、及び酸化カルシウムのいずれかを主成分としてなるガラスフィラーが好ましい。【選択図】なし
